Hello list,
I'm playing with IPv6 in 3.8 and came up to this strange problem.
My IPv6 connectivity is given by a broker (xs26.net) and I have set up a gif
interface to use it (gif0):
/etc/hostname.gif0 contains:
tunnel SIS0IPv4 BROKERIPv4
inet6 IPv6PREFIX::1
!route add -inet6 default IPv6PREFIX::1
gif0: flags=8151<UP,POINTOPOINT,RUNNING,PROMISC,MULTICAST> mtu 1500
groups: gif
physical address inet SIS0IPv4 --> BROKERIPv4
inet6 fe80::202:6fff:fe21:ea79%gif0 -> prefixlen 64 scopeid 0x8
inet6 IPv6PREFIX::1 -> prefixlen 64
The funny thing is that I _can_ ping a given machine.
[EMAIL PROTECTED]:~$ ping6 DISTANTHOSTNAME
PING6(56=40+8+8 bytes) IPv6PREFIX::1 --> DISTANTHOSTIPv6
16 bytes from DISTANTHOSTIPv6, icmp_seq=0 hlim=53 time=207.974 ms
16 bytes from DISTANTHOSTIPv6, icmp_seq=1 hlim=53 time=176.176 ms
16 bytes from DISTANTHOSTIPv6, icmp_seq=2 hlim=53 time=241.964 ms
16 bytes from DISTANTHOSTIPv6, icmp_seq=3 hlim=53 time=253.56 ms
^C
--- zorglub.ssji.net ping6 statistics ---
4 packets transmitted, 4 packets received, 0.0% packet loss
round-trip min/avg/max/std-dev = 176.176/219.918/253.560/30.306 ms
but I get a no route to host when trying to ssh to it
[EMAIL PROTECTED]:~$ ssh -v6 DISTANTHOSTNAME
OpenSSH_4.1, OpenSSL 0.9.7g 11 Apr 2005
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Connecting to DISTANTHOSTNAME [DISTANTHOSTIPv6] port 22.
debug1: connect to address DISTANTHOSTIPv6 port 22: No route to host
ssh: connect to host DISTANTHOSTNAME port 22: No route to host
(/etc/ssh/ssh_config reads $OpenBSD: ssh_config,v 1.20 2005/01/28
09:45:53 dtucker Exp $ and has not been modified)
To be even weirder, the machines behind the router, which get IPv6 in the same
prefix manage to ssh to the very same host using IPv6 through the router.
Does somebody have some ideas/solutions about this problem ?
Useful information (note the "illegal prefix len" in the output of route for
::/4, which seems to be what "default" resolves to when route -add'ing)
[EMAIL PROTECTED]:~$ uname -a
OpenBSD mudrublic.narf.ssji.net 3.8 GENERIC#224 i386
[EMAIL PROTECTED]:~$ route -n show -inet6
Routing tables
Internet6:
Destination Gateway Flags Refs
Use Mtu Interface
route: illegal prefixlen
::/4 IPv6PREFIX::1 UGS 0
1591 - gif0
::1 ::1 UH 0
0 33224 lo0
IPv6PREFIX::/64 link#8 UC 0
0 - gif0
IPv6PREFIX::1 link#8 UHLc 0
12 - lo0
IPv6PREFIX:100::/64 link#3 UC 0
0 - sis1
IPv6PREFIX:100::1 00:00:24:c4:22:5d UHLc 0
0 - lo0
IPv6PREFIX:101::/64 link#1 UC 0
0 - ath0
IPv6PREFIX:101::1 00:02:6f:21:ea:79 UHLc 0
0 - lo0
IPv6PREFIX:101:211:95ff:febb:812f 00:11:95:bb:81:2f UHLc
0 1857 - ath0
IPv6PREFIX:101:230:65ff:fe0f:2795 00:30:65:0f:27:95 UHLc
0 2 - ath0
fe80::%ath0/64 link#1 UC 0
0 - ath0
fe80::202:6fff:fe21:ea79%ath0 00:02:6f:21:ea:79 UHLc 0
0 - lo0
fe80::211:95ff:febb:812f%ath0 00:11:95:bb:81:2f UHLc 0
109 - ath0
fe80::230:65ff:fe0f:2795%ath0 00:30:65:0f:27:95 UHLc 0
4 - ath0
fe80::%sis0/64 link#2 UC 0
0 - sis0
fe80::%sis1/64 link#3 UC 0
0 - sis1
fe80::%lo0/64 fe80::1%lo0 U 0
0 - lo0
fe80::%gif0 link#8 UHLc 0
0 - gif0
fe80::%gif0/64 link#8 UC 0
0 - gif0
fe80::202:6fff:fe21:ea79%gif0 link#8 UHLc 0
0 - lo0
fe80::260:8ff:fe34:275f%gif0 link#8 UHLc 0
606 - gif0
ff01::/32 ::1 UC 0
0 - lo0
ff02::%ath0/32 link#1 UC 0
0 - ath0
ff02::%sis0/32 link#2 UC 0
0 - sis0
ff02::%sis1/32 link#3 UC 0
0 - sis1
ff02::%lo0/32 ::1 UC 0
0 - lo0
ff02::%gif0/32 link#8 UC 0
0 - gif0
dmesg not included as it does not seem to be relevant for this problem,
correct me if I'm wrong (;
thanks
--
Olivier Mehani <[EMAIL PROTECTED]>
